[LinuxPPS] CentOS 6 issues with pps device

[Ritter, Nicholas]

I am having troubles with a CentOS v6 (64bit) install and setting up
LinuxPPS.

 

Kernel version is : 2.6.32-71.29.1.el6 (centos provided kernel)

 

Out of the box, the PPS kernel module is available. And when I load it I
get the following:

 

Command: modprob pps_core

Dmesg output: 

LinuxPPS API ver. 1 registered

Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti
giometti at linux.it

 

I have a Garmin 18LVC attached to ttyS0, using minicom I have confirmed
NMEA output at 48008N1.

 

I have tried various ways to create the PPS device without any luck.

 

My lsmod output for pps is:

 

pps_core               11160  0

 

ldattach gives me an error:

 

ldattach from util-linux-ng 2.17.2

 

Usage: ldattach [ -dhV78neo12 ] [ -s <speed> ] <ldisc> <device>

 

Known <ldisc> names:

  TTY

  SLIP

  MOUSE

  PPP

  STRIP

  AX25

  X25

  6PACK

  R3964

  IRDA

  HDLC

  SYNC_PPP

  SYNCPPP

  HCI

  GIGASET_M101

  GIGASET

  M101

  PPS

 

ldattach -d -8 -n -1 -s 4800 18 /dev/ttyS0

ldattach:opened /dev/ttyS0

ldattach:set to raw 4800 8n1: cflag=0x8bc

ldattach: cannot set line discipline: Invalid argument

 

 

How can I get this PPS device setup?

 

Nick

 

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